Quote:
Originally Posted by towbar
Sounds deeper and not as high pitched as rockers or pushrods to me. I'm in the line of thinking of the loose or broken flex plate. Also look for the flexplate hitting the torque converter cover (inspection cover). Quick 4 bolt check to rule these out. Good luck
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Yup, an easy thing to check. I find it a bit hard to diagnose sounds from a recording. When my flex plate cracked, it made a very deep hard knock and I honestly thought it was a rod bearing about to let go. The OP's video just doesn't have that same sound to me, but I would not bet any money on it either way. It's just too hard for me to tell.
